Madsen, J. D. (2012). Does Monoecious Hydrilla Pose a Unique Threat to Glacial Lakes: Let Me Count the Ways. Symposium on the Biology and Management of Monoecious Hydrilla. Syracuse, NY: US Army Corps of Engineers Buffalo District and Engineer Research and Development Center.

Madsen, J. D. (2012). Advantages and Disadvantages of Aquatic Plant Management Techniques. The Interface between Aquatic Herbicide Use and Salmonids: A Focus on Critical Habitat in the Pacific Northwest Region. Seattle, WA: US Army Corps of Engineers, Water Operations Technical Support Program.

Madsen, J. D. (2012). Aquatic Plant Distribution Assessment within the Littoral Zone of the Ross Barnett Reservoir, MS in 2011: A Seven Year Evaluation. Pearl River Valley Water Supply District Board of Directors Meeting. Jackson, MS: Pearl River Valley Water Supply District.

Madsen, J. D. (2012). Advantages and Disadvantages of Plant Control Methods. 2012 Minnesota Aquatic Invasive Species Symposium: The Latest in Research and Policy. St. Paul, MN: Minnesota Association of Watershed Districts.

Madsen, J. D. (2011). The Ecology of Aquatic Plants and Its Implications for Lake Management. USACE Workshop: Control of Invasive Aquatic Plants using Herbicides in Flowing Water Systems in the Northwest. Spokane, WA: US Army Corps of Engineers.

Madsen, J. D. (2011). Understanding Eurasian Watermilfoil. USACE Workshop: Control of Invasive Aquatic Plants using Herbicides in Flowing Water Systems in the Northwest. Spokane, WA: US Army Corps of Engineers.

Madsen, J. D. (2011). Invasive Species Research and Extension at GRI. Mississippi - Texas Invasive Species Work Group. Mississippi State University: Geosystems Research Institute.

Madsen, J. D. (2010). Aquatic Plant Assessment of the Ross Barnett Reservoir in 2009: A Five Year Evaluation. Board of Directors Meeting, Pearl River Water Supply District. Jackson, MS. [Document]

Madsen, J. D. (2010). Invasive Species Programs at the Geosystems Research Institute. Mississippi State University: Geosystems Research Institute Seminar Series.

Madsen, J. D., & Ervin, G. N. (2010). An Update on the Invasive Plant Atlas of the MidSouth Project. Invasive Species Working Group Teleconference. National Biological Information Infrastructure: Invasive Species Information Node. [Abstract]

Madsen, J. D. (2010). Council for Agricultural Science and Technology. Current Topics. Mississippi State University: Plant and Soil Science Department.

Madsen, J. D. (2010). Considerations of the Use of Herbicides to Control the Emergent and Submersed Phases of Flowering Rush. Flowering Rush Workshop. St Paul, MN: Minnesota Department of Natural Resources.

Madsen, J. D., & Ervin, G. N. (2008). Integrating Effects of Land Use Change on Invasive Plant Species Distribution into an Invasive Plant Atlas for the Mid-south (IPAMS). NBII Invasive Species Working Group (April 28, 2008).

Madsen, J. D. (2007). Cactus Moth Detection and Monitoring Network on Public and Private Lands in the United States. A Partnership between USDA-APHIS, USGS, and Mississippi State University. Invasive Species Working Group, NBII (April 26, 2007).